I have had a varying succession of cows, calves and heifers and all have been troublesome.
我养过一连串不同的母牛、小牛和小母牛， 它们都很麻烦。
Cow calf
原声例句
十字小溪（下）
英语百科
Cow-calf
In North American railroading, a cow-calf (also cow and calf) locomotive is a set of switcher-type diesel locomotives. The set usually is a pair; some 3-unit sets (with two calves) were built, but this was rare. A cow is equipped with a driving cab; a calf is not. The two are coupled together (either with regular couplers or a semi-permanent drawbar) and are connected with MU cables and brake lines so that both locomotive units can be operated from a single cab.
- Gonadotropin Receptors,Pituitary的意思
- gonadotropin release inhibitory factor的意思
- gonadotropin releasing agent的意思
- gonadotropin releasing factor的意思
- gonadotropin releasing hormoe的意思
- Gonadotropin releasing hormone的意思
- Gonadotropinreleasing Hormone的意思
- Gonadotropin releasing hormone agonist的意思
- gonadotropin releasing hormone analogue的意思
- gonadotropin releasing hormone analogues的意思
- gonadotropin releasing hormone antagonist的意思
- gonadotropinreleasing hormone associated peptide的意思
- gonadotropin releasing hormone associated peptide的意思
- gonadotropin releasing hormone associated protein的意思
- gonadotropin releasing hormone,GnRH的意思
- gonadotropin releasing hormone pulse generator的意思
- Gonadotropin Releasing Hormone Receptor的意思
- Gonadotropin Releasing Hormone Receptors的意思
- gonadotropin resistant ovarian syndrome的意思
- gonadotropin resistant ovary syndrome的意思
- gonadotropin的意思
- Gonadotropins,Chorionic的意思
- Gonadotropins,Chorionic,Human的意思
- Gonadotropins,Chorionic,Human beta Subunit的意思
- gonadotropins decreased的意思